Improvement in railway-chairs



-2 Sheets--Sheet 1. W. MANSFIELD. Railway Chairs. No.152567, nPatentedlun$30,1874.

2Sheets-Sheet2- W. MANSFIELD. A

Railway Chairs.

Patented June 30,1874.

UNITED STATES PATENT OFFICE.

TILLIS MAN SFIELD, OF NEV HAVEN, CONNECTICUT, ASSIGNOR TO HIM SELF ANDJOSEPH I?. BRONSON, OF SAME PLACE.

IMPROVEMENT IN RAILWAY-CHAIRS.

Specification forming part of Letters Patent No. 152,567, dated June 30,1874; application filed April 10, 1874.

To alt whom it may concern:

Be it known that I, WILLIS MANsFinLD, of New Haven, in the county of NewI-Iaven and State of Connecticut, have invented a new Improvement inRailway-Chairs; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon,to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in t Figure l, a top view of the chair as holding the rail;Fig; 2, a transverse section through the chair on line a; m; Fig. 3, atop view as applied to a frog; Fig. 4, a transverse section through oneof the bolts.

This invention relates toan improvement in chairs and like devices for.securing railroadrails, the object being to firmly hold the rail, andyet give to it a semi-elastic bearing; and it consists in constructingthe chair in two parts, combined with a wood bearing, or bearing ofsimilar material, for the rail, and a key, by which the said bearing isforced up against the rail, as more fully hereinafter described.

A is the one part of the chair, and B the other part, the two partsmeeting at the center beneath the rail, as seen in Fig. 4, each partformed, respectively,with an ear, a b, between which the rail sits.These two parts are secured together by bolts C, extending through fromside to side, as seen in Fig. l. Between the parts A B a recess isformed, into which is set a block, D, of wood or similar materia-l, andbeneath, transversely through the chair, a mortise, E, is formed, intowhich is driven a key, F, to force the block D upward. Each side of therail is placed a wood cheekpiece, f. The two parts ofthe chair areplaced on the rail, as seen in Fig. 2, and, by means of bolts, drawnhard down upon the cheek-pieces f. Then the key F is introduced, anddriven to force the block D hard up against and so as to take the entirebearing of the rail G. This prevents the rail from coming in actualcontact with the metal of the chair. This chair may be used directly onevery tie, or only used as a means of connecting the two ends of therail. Incase the cheek-pieces j' are not required, the ears c b shouldbe formed so as to grasp the rail; but I prefer the use of the woodcheek-pieces. This construction of chair is peculiarly adapted to theconstruction ot' frogs, it only being required to divide the chair ateach rail H H, Fig. 3, and centrally beneath the point I. The sameblocks D are used beneath each rail, and preferably the samecheek-pieces f, thus enabling me to construct an elastic frog in anextremely cheap and durable manner. Thus I make every chair or bearingelastic, and materially take away from the wear of the rail.

This chair is peculiarly adapted to the construction of street-railways,in that a greater depth is given to the chairs than in those usuallyemployed, and they may be placed directly on the ties, and givesufficient depth for paving above the ties, and dispense with theStringer.

An elastic material, as india-rubber, maybe introduced between the railand key; but in such case the seat D should be divided, and theindia-rubber inserted between the two parts.

I claim as my invention- A railwaychair formed from the two parts A B,secured together by transverse bolts C,

Veach part provided, respectively, with an ear,`

a b, combined with the seat D and the key F beneath the said seat,substantially as set forth.`

YVILLIS M'ANSFIELD.

Vitiiesses:

A. J. TIBBITs, J. H. SHUMWAY.

